1990 EFI460? mods=poor idle

Reply Subscribe

Thread Tools

Search this Thread

Jun 7, 2006 | 03:56 PM

stngh8r

Thread Starter

Senior User

Joined: Oct 2005

Posts: 434

Likes: 0

From: Idabel, OK

1990 EFI460? mods=poor idle

I have a 90 EFI460 E4OD. It has a K&N CAI and free flowing catback. Shortly after installing the K&N, I had the battery cable off and since then it has not wanted to idle properly. The two events were so close together, I am not sure which one to blame. Driving the truck is perfect and it runs like a dream, its just the idle quality that is shaky, especially before getting warmed up?

Are the speed density 460's very sensitive to mods? Do I need a chip or something just because of the CAI and Catback? If I later go with a cam/headers is the problem going to get worse?

Any help would be greatly appreciated.

thanks
eric <><